There are many reasons why you might be dissatisfied with your current situation.

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In the cities of the rich world no woman is expected to wear a garment until it is worn out. (Men, unaccountably, tend to hold on to their clothes for years, but the industry is working on the problem.) The clothes industry would be in a pickle without a constant supply of clients dissatisfied with the contents of their wardrobes.

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Helmreich points out that people with one of T-Mobile's exclusive Google Android phones or Sprint's Palm Pre are also more likely to be dissatisfied with their service if they switched providers for those phones.

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Thus, the information employees get from Glassdoor may make their own pay look worse than it is, and may cause them to be more dissatisfied with their pay than if they knew what others were actually making.

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Sometimes it is quite minor, only causing you to be dissatisfied with someone, and other times there is real negative impact, like reputation damage or even financial loss.

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